He's coming across as a total narcissist.
Remarking repeatedly on how good he looked and how he was the funniest member of the cast, the only one who was brought into the script writing and the one to influence how future generations spoke.
Noting that even when being rushed to the hospital with a burst colon, doctors had been made aware that a VIP guest was coming in. It's of no relevance other than MP would not dream of skipping that part.
Assuming that Cedars Sinai wouldn't have him because he was too important and they couldn't possibly have someone so important die in their building so refused to admit him on that basis.
Spilling the beans that Julia Roberts pursued him and changed the tone of their messages to sexual.
Telling everyone that a named married woman made out with him while her husband was present and unaware.
He's a thoroughly narcissistic, self-absorbed, shallow, ungentlemanly character who will say whatever he wants without a moment's thought for how it affects others.